TITLE Ethylene evolution by juvenile and adult developmental phases of Sequoia sempervirens shoots cultured in vitro
AUTHOR Li-Chun Huang
Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan
Ching-I Kuo
Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan
Chiu-Hui Wang
Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan
Toshio Murashige
Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan
Tan-Chi Huang
Institute of Botany, Academia Sinica, Nankang, Taipei, Taiwan
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ABSTRACT Cultures of juvenile and rejuvenated Sequoia sempervirens shoots generated more ethylene than those of adult shoots. But the higher phytohormone production was only indirectly related to the developmental phase. The juvenile and rejuvenated shoots also grew more rapidly; thus, when measured on a per gram tissue basis the rates of ethylene evolution were the same for tissues of both developmental phases, and even higher for one of the adults. The investigation did not establish whether the faster growth of juvenile and rejuvenated shoots was caused by the ethylene; on the other hand, there was no evidence of inhibitory effects.
KEYWORD Ethylene; Gas chromatograph; Phase change; Sequoia sempervirens; Tissue culture;
ARTICLE INFO Botanical Bulletin of Academia Sinica, Volume 41 Number 4 October 2000, page 263-266, 4 pages
PUBLISHER Institute of Plant and Microbial Biology, Academia Sinica, Taipei, Taiwan, Republic of China